union city production center. in addition to the black licorice products recalled last month, the department of health is warning these other products could have more than the allowable amount of lead. added to the recall, family mix, mixed bites, snaps, and black licorice twists. the bags are labeled with expiration dates of february, 2013. officials say eating the candy could lead to twice the allowable daily amount of lead in children. you've heard of solar energy, wind energy, and how about walnut energy? a walnut farmer in dixon near sacramento is using his stockpile of leftover walnut shells to help power his farm. russ lester uses this first-of-its-kind machine that heats up the shells to 2,000 degrees, converting them into a combustible gas that is fed to a generator. lester said he's the first person in the state to try it. >> the goal is for us to be sort of an example for other farms, peach pits, almond shells.